Control system for a DC motor

Details Control system for a DC motor Control system for a DC motor

1978-09-07

1981-05-19

Smith, Jr., David

Electricity: motive power systems

Limitation of motor load, current, torque or force

318332, H02D 516

Patent

active

042687829

ABSTRACT:
A system for controlling DC motors of the type employing permanent magnets as field poles. The firing phase angle of a thyristor is controlled in response to an error signal representative of an error between a commanded motor speed and an actual motor speed. For preventing demagnetization of the permanent magnets due to the armature reaction, the clamp level of the error signal is changed in accordance with the actual motor speed.

REFERENCES:
patent: 3508132 (1970-04-01), Peterson
patent: 3603856 (1971-09-01), Zalar et al.
patent: 3649897 (1972-03-01), Messick
patent: 3868554 (1975-02-01), Konrad
patent: 3955130 (1976-05-01), Graf
patent: 4039853 (1977-08-01), Koizumi et al.

Affiliated with

Also associated with

Rating

Control system for a DC motor does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Control system for a DC motor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Control system for a DC motor will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1492153